---
title: "12.5 Appendix 5: List of acronyms — Formal title, Remote ATS · Avioverse"
description: "ACC area control centre AD aerodrome ADS-B automatic dependent surveillance – broadcast AFIS aerodrome flight information service AFISO aerodrome flight…"
url: "https://avioverse.aero/regulations/easa/remote-ats/formal-title/12-appendices/12-5"
---

# 12.5 Appendix 5: List of acronyms

Formal title · GM to Regulation (EU) 2017/373 · EAR revision 26 Jan 2026

IR Implementing rule

## 12.5 Appendix 5: List of acronyms

| ACC         | area control centre                                                                                   |
| ----------- | ----------------------------------------------------------------------------------------------------- |
| AD          | aerodrome                                                                                             |
| ADS-B       | automatic dependent surveillance – broadcast                                                          |
| AFIS        | aerodrome flight information service                                                                  |
| AFISO       | aerodrome flight information service officer                                                          |
| AIC         | aeronautical information circular                                                                     |
| AIP         | aeronautical information publication                                                                  |
| AIS         | aeronautical information service                                                                      |
| AMC         | acceptable means of compliance                                                                        |
| ANS         | air navigation service                                                                                |
| APP         | approach control                                                                                      |
| ATC         | air traffic control (in this document mostly used to specifically target ‘aerodrome control service’) |
| ATCO        | air traffic controller                                                                                |
| ATM         | air traffic management                                                                                |
| ATS         | air traffic service                                                                                   |
| ATSEP       | air traffic safety electronics personnel                                                              |
| CFIT        | controlled flight into terrain                                                                        |
| CNS         | communication navigation surveillance                                                                 |
| CWP         | controller working position                                                                           |
| EASA        | European Union Aviation Safety Agency                                                                 |
| EC          | European Commission                                                                                   |
| ED Decision | Executive Director Decision                                                                           |
| E-OCVM      | European Operational Concept Validation Methodology                                                   |
| EU          | European Union                                                                                        |
| EUROCAE     | European Organisation for Civil Aviation Equipment                                                    |
| FIC         | flight information centre                                                                             |
| FOD         | foreign object debris                                                                                 |
| GM          | guidance material                                                                                     |
| HMI         | human-machine interface                                                                               |
| ICAO        | International Civil Aviation Organization                                                             |
| ID          | identifier                                                                                            |
| IFR         | instrument flight rules                                                                               |
| IR          | implementing rule                                                                                     |
| IT          | information technology                                                                                |
| MASPS       | Minimum Aviation System Performance Standards                                                         |
| MET         | meteorological                                                                                        |
| METAR       | meteorological terminal aviation routine weather report                                               |
| NOTAM       | notice to airmen                                                                                      |
| OH          | operational hazard                                                                                    |
| OSED        | operational services and environment description                                                      |
| OTW         | out-of-the-window                                                                                     |
| PANS-ATM    | Procedures for Navigation Services – Air Traffic Management                                           |
| PSR         | primary surveillance radar                                                                            |
| PTZ         | pan-tilt-zoom                                                                                         |
| QNH         | Q code indicating atmospheric pressure adjusted to sea level                                          |
| RFFS        | rescue and firefighting services                                                                      |
| RGL         | runway guard lights                                                                                   |
| RTC         | [remote tower centre](https://avioverse.aero/glossary/easa/remote-tower-centre)                       |
| RTM         | [remote tower module](https://avioverse.aero/glossary/easa/remote-tower-module)                       |
| RWY         | runway                                                                                                |
| SAR         | safety assessment report                                                                              |
| SERA        | standardised European rules of the air                                                                |
| SESAR       | Single European Sky ATM Research                                                                      |
| SESAR JU    | Single European Sky ATM Research Joint Undertaking                                                    |
| SSR         | secondary surveillance radar                                                                          |
| TAF         | terminal aerodrome forecast                                                                           |
| UPS         | uninterruptible power supply                                                                          |
| VALR        | validation report                                                                                     |
| VFR         | visual flight rules                                                                                   |
| WAN         | wide area network                                                                                     |

IR · 12.5 — GM to Regulation (EU) 2017/373 · ED Decision 2023/005/R · Remote ATS Easy Access Rules · EAR revision 26 Jan 2026

[All rules in 12. Appendices](https://avioverse.aero/regulations/easa/remote-ats/formal-title/12-appendices)

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.